85564573 has 8 divisors (see below), whose sum is σ = 87917760. Its totient is φ = 83241600.

The previous prime is 85564559. The next prime is 85564597. The reversal of 85564573 is 37546558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85564573 - 2¹⁷ = 85433501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85534573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1753 + ... + 13198.

It is an arithmetic number, because the mean of its divisors is an integer number (10989720).

Almost surely, 2^85564573 is an apocalyptic number.

It is an amenable number.

85564573 is a deficient number, since it is larger than the sum of its proper divisors (2353187).

85564573 is a wasteful number, since it uses less digits than its factorization.

85564573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15107.

The product of its digits is 504000, while the sum is 43.

The square root of 85564573 is about 9250.1120533754. The cubic root of 85564573 is about 440.6542831368.

The spelling of 85564573 in words is "eighty-five million, five hundred sixty-four thousand, five hundred seventy-three".